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Finding the Fourth Proportional to 307,850.40, 461,775.60 and 293,416.20

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Solution

The fourth proportional to 307,850.40, 461,775.60 and 293,416.20 is: 440,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,850.40 : 461,775.60 = 293,416.20 : x
  2. Step 2: Convert to fraction form
    307,850.40/461,775.60 = 293,416.20/x
  3. Step 3: Cross multiply
    307,850.40x = 461,775.60 × 293,416.20
  4. Step 4: Simplify right side
    307,850.40x = 135,492,441,804.72
  5. Step 5: Solve for x
    x = 135,492,441,804.72/307,850.40
  6. Step 6: Final answer
    x = 440,124.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.